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各位 UL 987 30.3 关于运动部件护罩要求:
- G* d9 S; Y% g4 [8 t30.3 Some guards provided over moving parts are required to be of the self-restoring type – for example,- c2 y. g1 `2 ~8 {. b! ? T
a guard on a saw and a guard on a jointer. Other features of a guard that shall be considered include:' X3 t1 j2 x! F, n5 S
a) Removability of the guard without the use of a tool; | b) Removability for servicing and the need for replacement;
0 t- K& y. I8 T) f; ?2 f9 V4 jc) Strength and rigidity;7 _/ m# P1 R" x
d) Completeness; and
$ g6 K0 o6 z9 i/ o, ^4 Ee) Creation of a risk of injury to persons, such as pinch points, material hang-ups or jams,# [/ ~: u; U! ]) Y* i' v
restricted vision, or other conditions adversely affecting the ease of operation; and the necessity& i; [+ q1 v0 o
for additional handling because of increased need for servicing – such as cleaning, unjamming,) E( w3 h/ `8 g
and the like.6 v0 E! o' R8 {
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其中的a 怎么理解?不用工具就可以拆掉的运动部件护罩可以接受吗? |
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